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Clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people
Pea sized amount applied in the AM
When to apply AM & PM
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Ectoin Hydro-Barrier Serum
Ectoin Hydro-Barrier Serum
Ectoin Hydro-Barrier Serum
Key claim statistics for ectoin Hydro-Barrier serum
Model with ectoin serum on skin

Ectoin Hydro-Barrier Serum | The INKEY List

Hydrates whilst supporting and strengthening the skin’s barrier

4.6
Rated 4.6 out of 5 stars
4.6 Stars (195 Reviews)
£15.00 / 30ml
A breakthrough in barrier skincare, The INKEY List Ectoin Hydro-Barrier Serum is your winter skin savior—a dual-action serum that boosts hydration up to 10 surface layers deep whilst building a stronger, more resilient skin barrier to defend against cold weather, dry air, and seasonal stressors. Clinically proven to restore skin bounce in just 3 days and deeply hydrate + strengthen the skin’s barrier in just 15 minutes, it’s a cold-weather essential for keeping skin hydrated, soothed, and glowing all season long.

Replenishing your hydration whilst simultaneously repairing your barrier is essential for protecting against winter dryness and moisture loss. Our Ectoin Hydro-Barrier Serum has been uniquely formulated with ingredients that work synergistically to provide deep, multi-level hydration, helping to lock in moisture and shield the skin from environmental aggressors.

2% Ectoin: Known as an extreme protector, Ectoin acts as a natural hydrator and skin cell stabilizer, helping to prevent winter-induced dehydration, calm irritation, and reinforce barrier strength for skin that stays soft, smooth, and comfortable.

Multi-Molecular Hyaluronic Acid: Helps restore the protective skin barrier from the outside in, enabling it to retain moisture more effectively—even in cold, dry air.

Whether you're looking for a hydrating serum for winter-parched skin or a lightweight layer of moisture to keep skin balanced, with continued daily use, this serum visibly improves 5 signs of a compromised skin barrier: dullness, dryness, redness, flakiness, and slackness. The INKEY List’s Ectoin Serum has a lightweight texture that melts into the skin, delivering instant, non-tacky hydration—perfect for layering under your winter skincare and makeup routine.

Suitable for:

  • All skin types
  • Barrier support and protection ​

Targets:

  • Dehydrated skin
  • Compromised skin barrier
  • Dryness
  • Flakiness
  • Dullness

Proud to be:

  • Cruelty Free
  • Carbon Net-Zero
  • Clinically Tested
  • Dermatologically Tested
  • B-Corp
  • Fragrance Free
  • Silicon Free
  • Alcohol Free
  • Vegan
  • Pregnancy & Breastfeeding Safe

Awards & Features

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Delivery info

Standard tracked delivery (Royal Mail)

  • £3.99
  • FREE on your first order & orders over £30
  • (2-5 working days*) 

Express tracked delivery (Royal Mail)

  • £5.95 
  • FREE express tracked delivery on orders £50+
  • (Up to 2 working days if ordered before 4pm, excluding weekends*)

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Ectoin Hydro-Barrier Serum

Ectoin Hydro-Barrier Serum

  • • For those who want healthier, stronger skin
  • Hydrates & strengthens the skin barrier in just 15 minutes*
  • • Gives visibly bouncier & smoother skin in just 7 days*
  • • Visibly improves 5 signs of a compromised skin barrier: dryness, flakiness, dullness, redness and slackness

or

Have you tried?

Hyaluronic Acid Serum - 30ml

Hyaluronic Acid Serum - 30ml

  • • For those who want to maintain healthy, hydrated skin
  • • Provides instant & lasting hydration
  • • Helps your other skincare work harder
  • • Leaves skin feeling plump & smooth

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  • Before and after comparison
    "I was actually shocked with the results myself it kept improving and I started seeing the difference after a week and it just kept getting better I can’t wait for the official launch I’m gonna buy more products from inkey I’m really impressed with the result, this product is a part of my daily morning and night skincare routine and I’m so thankful for the opportunity you guys gave me to test this out"

    Sumbal

  • Before and after comparison
4.6
Rated 4.6 out of 5 stars
Based on 195 reviews
Total 5 star reviews: 145 Total 4 star reviews: 33 Total 3 star reviews: 7 Total 2 star reviews: 5 Total 1 star reviews: 5
195 reviews
  • Jess
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Dehydration, Redness, Damaged Skin Barrier
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Holy grail

    This has done my skin wonders. Its strengthened my skin barrier in only a few days, calmed my redness and made my skin so smooth and plump! Love it.

  • Mary M.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 65+
    Skin Type Combination
    Skin Concerns Hyperpigmentation, Fine Lines and Wrinkles, Acne Scars, Texture
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    4 days ago
    Unsure as yet...

    I always think it takes 6 weeks to see if a product such as this is making a difference and I am unsure whether it is. However, I've given 4 stars as Inkey products do tend to deliver. What I am unhappy about though is that it pills badly if you use a foundation of any sort on top of it. I've tried to leave longer before applying anything else, but this seemed to make the pilling worse. Perhaps I should only use it in the evening?

  • Suzanne L.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 65+
    Skin Type Normal
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    4 days ago
    Feels good

    Its too early to tell if its 'doing' anything. But it feels good.

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